21191488

素因数分解:

$2^6\times {\mathrm{263}}^1\times {\mathrm{1259}}^1$

素因数の和:1534

約数の個数: 28

約数和(自身を含む): 42245280

約数和(自身を除く): 21053792

約数列:

[1, 2, 4, 8, 16, 32, 64, 263, 526, 1052, 1259, 2104, 2518, 4208, 5036, 8416, 10072, 16832, 20144, 40288, 80576, 331117, 662234, 1324468, 2648936, 5297872, 10595744, 21191488]

約数ペア:

[(1, 21191488), (2, 10595744), (4, 5297872), (8, 2648936), (16, 1324468), (32, 662234), (64, 331117), (263, 80576), (526, 40288), (1052, 20144), (1259, 16832), (2104, 10072), (2518, 8416), (4208, 5036)]